Ncert Exercises & Solutions

To reduce the ripples in rectifier circuit with capacitor filter:

(a) R_L should be increased
(b) input frequency should be decreased
(c) input frequency should be increased
(d) capacitors with high capacitance should be used

1. (a, c)

2. (b, d)

3. (a, c, d)

4. (b, c, d)

(3) Hint: Ripple factor is inversely proportional to R_L, C and v.

To reduce r, R_L should be increased, input frequency should be increased and capacitance C should be increased.

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